Bonitron M3452 Heavy Duty Braking Transistor

M3452 - Heavy Duty Braking Transistor

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- Up to 1200hp : Up to 100% Duty -

Braking Transistor and Braking Resistor modules are used with AC drives to eliminate overvoltage faults. The use of these modules permits controlled braking of the AC drive and dramatically shortens the time required for motor stopping as opposed to coasting.

Bonitron M3452 Heavy Duty Braking transistors are used in applications that have continuous or high duty cycle requirements. The modules are used with drives that have inadequate or no internal braking transistor. They work with any AC drive system with DC bus field terminals. The Bonitron M3452 Braking Transistor modules monitor the drive DC bus levels and control an IGBT power switch which is connected to a resistive load for dissipating the regenerated energy.

Standard modules are available rated up to 1200 Amps DC and Braking Duty Cycles up to 100%.

Features • 50 - 100% Braking Duty, 0-1200 HP, 230 - 575 VAC line voltages available • Module status output contacts, DC bus set points available • UL & CUL Certified modules available • Wall or cabinet mountable • Compatible with any variable frequency drive (VFD) • Only 4 connections Advantages • High horsepower and continuous duty cycles available • Versatility of status output contacts and DC bus set points • Can be installed as retrofit or with initial installation to existing cabinet or drive location • Fits any VFD DC bus electrical configuration • Status indicators for visual module status monitoring Benefits • No additional hardware required which lowers installation costs • Certification UL & CUL program adds to unit reliability • Model Number Selection Table makes selecting a model number simple • Rapid installation saving production downtime • Stock to 2 weeks available	Specifications
	Voltages...................... Connections................ Package....................... Panel Indicators......... Duty Cycle.................... Maximum 'On-Time'... Adjustments................ Operating Temp…..... Storage Temp............. Humidity...................... Atmosphere.................	230, 380, 460, 575 VAC Drive DC Bus Input AC Line (single phase +10% / -20% 50 / 60 Hz) Ground Open DC Bus Control Power Active Braking Up to 50% or 100% 60 Seconds or Continuous None 0 to 50° C -20 to +65° C Below 90% non-condensing Free of conductive gas & dust

Please be sure to check out our Sales Brochure or User Manual for more information.

Model Number Selection Table

Chassis

Typical Application